# ThinkingPart

# Interface: ThinkingPart

Defined in: [packages/ai/src/types.ts:376](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L376)

## Properties

### content

```ts
content: string;
```

Defined in: [packages/ai/src/types.ts:378](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L378)

***

### signature?

```ts
optional signature: string;
```

Defined in: [packages/ai/src/types.ts:380](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L380)

***

### stepId?

```ts
optional stepId: string;
```

Defined in: [packages/ai/src/types.ts:379](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L379)

***

### type

```ts
type: "thinking";
```

Defined in: [packages/ai/src/types.ts:377](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L377)